OpenAI

AI · Media

https://apiserver.mpprouter.dev/v1/services/openai

Chat completions, embeddings, image generation, and audio with model-tier pricing.

Provider site API docs →Live catalog →

Endpoints

Method

URL

Description

Price

POST

https://apiserver.mpprouter.dev/v1/services/openai/v1/responses

Responses API (Codex, GPT-4o, etc.) - price varies by model

—

POST

https://apiserver.mpprouter.dev/v1/services/openai/v1/chat/completions

Chat completions (GPT-4o, GPT-4, o1, etc.) - price varies by model

—

POST

https://apiserver.mpprouter.dev/v1/services/openai/v1/embeddings

Create embeddings

$0.0001

POST

https://apiserver.mpprouter.dev/v1/services/openai/v1/images/generations

Generate images with DALL-E

$0.05

POST

https://apiserver.mpprouter.dev/v1/services/openai/v1/audio/transcriptions

Transcribe audio with Whisper

$0.01

POST

https://apiserver.mpprouter.dev/v1/services/openai/v1/audio/speech

Text-to-speech

$0.02

Try it with your agent

Ask OpenAI gpt-4o-mini via MPP Router to summarize this sentence: "Stellar settles USDC payments in about five seconds for a fraction of a cent." Pay with my Stellar USDC wallet and show me the response.

Requires the stellar-agent-wallet skill — see Use with agents.

Code sample

curl -X POST "https://apiserver.mpprouter.dev/v1/services/openai/v1/responses" \
  -H "Content-Type: application/json" \
  -d '{}'
# returns 402 Payment Required — pay with the stellar-agent-wallet skill (mppx / x402)

Verification

/v1/services/openai/chat

dynamic

session-verified 2026-08-09

Verified — tx evidence not yet published here